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[–]casparvoneverecBig tiddy respecter 3 insightful - 2 fun3 insightful - 1 fun4 insightful - 2 fun -  (0 children)

To an extent even for the gas because it requires a complex industrial process of liquefaction and distillation to separate N2 from O2. But that's the catch. You don't have pure O2 in nature. You have to process it through labor and its scarce.